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US20050280274A1 - Trailer tailgate - Google Patents

Trailer tailgate Download PDF

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Publication number
US20050280274A1
US20050280274A1 US10/869,265 US86926504A US2005280274A1 US 20050280274 A1 US20050280274 A1 US 20050280274A1 US 86926504 A US86926504 A US 86926504A US 2005280274 A1 US2005280274 A1 US 2005280274A1
Authority
US
United States
Prior art keywords
tailgate
trailer
wedge
shaped
loading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/869,265
Inventor
Jon Devitt
Gerald Wiertsema
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midwest Industries Inc
Original Assignee
Midwest Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midwest Industries Inc filed Critical Midwest Industries Inc
Priority to US10/869,265 priority Critical patent/US20050280274A1/en
Assigned to MIDWEST INDUSTRIES, INC. reassignment MIDWEST INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEVITT, JON W., WIERTSEMA, GERALD
Publication of US20050280274A1 publication Critical patent/US20050280274A1/en
Priority to US11/344,481 priority patent/US7150487B2/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
    • B60P3/07—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying road vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/43—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle
    • B60P1/433—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle the loading floor or a part thereof being movable to form the ramp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/12—Vehicles adapted to transport, to carry or to comprise special loads or objects for salvaging damaged vehicles
    • B60P3/122—Vehicles adapted to transport, to carry or to comprise special loads or objects for salvaging damaged vehicles by supporting the whole vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/02—Platforms; Open load compartments
    • B62D33/023—Sideboard or tailgate structures
    • B62D33/027—Sideboard or tailgate structures movable
    • B62D33/03—Sideboard or tailgate structures movable by swinging down

Definitions

  • This invention relates generally to a trailer. More particularly, this invention relates to a novel tailgate for a trailer.
  • the tailgate is especially suited, but not limited, to a motorcycle transport trailer.
  • Tailgates Utility trailers, as well as those for a specific use such as the transport of motorcycles, all-terrain vehicles, snowmobiles, etc. are often equipped with a tailgate.
  • the tailgate serves only to help keep the cargo in the trailer when the tailgate is closed.
  • Some trailers are equipped with tailgates that may be used for a loading ramp. These tailgates tend to be either very short, making the loading ramp too steep, or very long, so they stand very high when closed. A tall closed tailgate results in significant wind resistance, reducing the efficiency of the prime mover pulling the trailer.
  • One object of the present invention is to provide a loading ramp having a shallow slope for ease and safety of loading, especially for loading street bike motorcycles that have a low ground clearance. Another object is for the tailgate to be aerodynamically efficient in transit at road speeds. Still another object is for the tailgate to fold up in a transport position such that a deck of the trailer and the folded tailgate, together, make up a substantially planar surface.
  • the tailgate of the present invention pivots on an axis of rotation that is disposed above the top surface of the tailgate when in a loading-ramp position. This helps to maintain a lower upper surface of the tailgate (again, when in its loading-ramp position), making the slope of the ramp more amenable to loading.
  • the ramp is wedge shaped, with the thinnest edge of the wedge at the rear when it is in its loading-ramp position. Rubber bumpers are located near the axis of rotation of the tailgate, the bumpers being positioned facing downward when the tailgate is in its loading-ramp position. The rubber bumpers provide protection to the tailgate and trailer when loading heavy objects by bearing on the pavement or ground surface.
  • the thickness of the tailgate permits the tailgate to fold into a transport position such that the trailer's deck and folded tailgate together provide a substantially planar surface; in addition, when in the loading-ramp position, the rubber bumpers are sufficiently low to provide the support mentioned above when loading heavy cargo such as a motorcycle.
  • the tailgate of the present invention In the transport position, the tailgate of the present invention also lies flat against the bed of the trailer, thus providing little wind resistance.
  • a latch pin secures the tailgate in the transport position.
  • FIG. 1 is a perspective view of a motorcycle transport trailer with a trailer tailgate in a transport position
  • FIG. 2 is a perspective view of the trailer tailgate of the present invention in a transport position
  • FIG. 3 is a perspective view of a latch-pin assembly for securing the trailer tailgate
  • FIG. 4 is a perspective view of the trailer tailgate in its loading-ramp position
  • FIG. 5 is a side elevation view of a rear portion of the trailer with the trailer tailgate in its transport position
  • FIG. 6 is a side elevation view of a rear portion of the trailer with the trailer tailgate in its loading ramp position
  • FIG. 7 is a side elevation view of a rear portion of the trailer with the trailer tailgate in its loading ramp position, a motorcycle being loaded thereon.
  • FIG. 1 An example of a trailer 100 having a trailer tailgate 110 of the present invention is shown in FIG. 1 .
  • the trailer 100 is drawn by a tongue 120 , the forward direction of the trailer being parallel to and toward the tongue 120 .
  • the front of the trailer is toward the tongue.
  • Wheels 130 provide rolling support for the trailer 100 , in general.
  • the trailer 100 depicted in FIG. 1 has two wheels 130 , only one visible.
  • the trailer tailgate 110 of the present invention is not limited to use on a single axle trailer 100 .
  • the wheels 130 support a deck 140 on which cargo is supported for transport.
  • the trailer tailgate 110 in FIGS. 1 and 2 is shown in its transport position. In this position, the trailer tailgate 110 lies on the deck 140 of the trailer 100 . When in the transport position, the combination of the tailgate 110 and the exposed deck 140 preferably make up a substantially planar top surface. The wedge shape of the tailgate 110 makes this possible. Recessed taillights 210 and reflectors 220 are disposed to the rear of the trailer 100 .
  • An axis of rotation 230 is shown as a dot-dashed line in FIG. 2 .
  • the trailer tailgate 110 pivots on this axis of rotation 230 when converting between the transport position ( FIGS. 1, 2 , and 5 ) and the loading-ramp position ( FIGS. 4, 6 , and 7 ). Note that the axis of rotation 230 is below the trailer tailgate 110 when the trailer tailgate 110 is in its transport position.
  • a latch pin 240 is used to secure the trailer tailgate 110 in the transport position.
  • a latch pin assembly of the preferred embodiment is detailed in FIG. 3 .
  • a spring 310 provides a force compelling the latch pin 240 toward the trailer 100 .
  • a nut 320 disallows the latch pin 240 from being pulled from a hole in which it is engaged on the trailer 100 .
  • An end 330 opposite that of the nut 320 in the roughly U-shaped latch pin 240 engages a hole in the trailer tailgate 110 .
  • the latch pin 240 is pulled away from the trailer 100 , compressing the spring 310 until the end 330 opposite the nut 320 disengages from the hole in the trailer tailgate 110 .
  • the trailer tailgate 110 may be lifted from the deck 140 and rotated about the axis of rotation 230 until it contacts the ground or pavement behind the trailer 100 .
  • the trailer tailgate 110 is shown in its loading-ramp position in FIG. 4 .
  • the top surface of the trailer tailgate 110 (in this position) at the front edge is substantially even with the deck 140 of the trailer 100 .
  • the taillights 210 are protected in this position.
  • the axis of rotation 230 is now above the trailer tailgate 110 in the loading-ramp position.
  • the thin, rearmost edge 410 of the trailer tailgate 110 is typically supported by pavement or ground behind the trailer 100 .
  • the trailer 100 is shown from the side in FIGS. 5-7 .
  • the trailer tailgate 110 is in the transport position in FIG. 5 .
  • a characteristic height 510 is shown for the trailer tailgate 110 .
  • the trailer tailgate 110 is in its loading-ramp position as shown in FIGS. 6 and 7 .
  • Note that the end of the tailgate with the taillights 210 is noticeably lower in FIG. 6 than it was in FIG. 5 due to the location of the axis of rotation 230 relative to the trailer tailgate 110 . Because of the lowering of the characteristic height, the approach angle is quite shallow, permitting items such as street bikes with a low ground clearance, to be loaded without bottoming out.
  • a plurality of bumpers 610 are mounted on the surface of the trailer tailgate 110 closest to the ground when the trailer tailgate 110 is in its loading-ramp position. Because of the wedge-shape of the tailgate, the bumpers 610 are in a low position when in the loading-ramp position.
  • the trailer tailgate 110 is being used to load or unload a motorcycle 710 .
  • the bumpers 610 are lowered down to come into contact with the ground or pavement as shown by the arrow beneath the trailer deck 140 .

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Handcart (AREA)
  • Body Structure For Vehicles (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A wedge-shaped trailer tailgate providing a loading ramp and a planar surface in combination with the trailer deck when the tailgate is in its transport position. A planar deck is better for cargo hauling, but also provides little wind resistance for improved hauling efficiency. The wedge shape with elastic bumpers attached provides for support on loading heavy objects such as motorcycles. Taillights are recessed into the thick end of the wedge-shaped trailer tailgate so they face backward when the tailgate is in its transport position and are shielded under the trailer deck when the tailgate is in its loading-ramp position.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • Not applicable.
    • STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
  • Not applicable.
    • REFERENCE TO MICROFICHE APPENDIX
  • Not applicable.
    • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • This invention relates generally to a trailer. More particularly, this invention relates to a novel tailgate for a trailer. The tailgate is especially suited, but not limited, to a motorcycle transport trailer.
  • 2. Background Art
  • Utility trailers, as well as those for a specific use such as the transport of motorcycles, all-terrain vehicles, snowmobiles, etc. are often equipped with a tailgate. Usually, the tailgate serves only to help keep the cargo in the trailer when the tailgate is closed. Some trailers are equipped with tailgates that may be used for a loading ramp. These tailgates tend to be either very short, making the loading ramp too steep, or very long, so they stand very high when closed. A tall closed tailgate results in significant wind resistance, reducing the efficiency of the prime mover pulling the trailer.
  • There is, therefore, a need for a trailer tailgate providing an adequately shallow approach angle for loading, yet does not present significant wind resistance when in transit.
    • BRIEF SUMMARY OF THE INVENTION
  • One object of the present invention is to provide a loading ramp having a shallow slope for ease and safety of loading, especially for loading street bike motorcycles that have a low ground clearance. Another object is for the tailgate to be aerodynamically efficient in transit at road speeds. Still another object is for the tailgate to fold up in a transport position such that a deck of the trailer and the folded tailgate, together, make up a substantially planar surface.
  • The tailgate of the present invention pivots on an axis of rotation that is disposed above the top surface of the tailgate when in a loading-ramp position. This helps to maintain a lower upper surface of the tailgate (again, when in its loading-ramp position), making the slope of the ramp more amenable to loading. The ramp is wedge shaped, with the thinnest edge of the wedge at the rear when it is in its loading-ramp position. Rubber bumpers are located near the axis of rotation of the tailgate, the bumpers being positioned facing downward when the tailgate is in its loading-ramp position. The rubber bumpers provide protection to the tailgate and trailer when loading heavy objects by bearing on the pavement or ground surface.
  • Due to the wedge shape of the tailgate, at the hinge end, the thickness of the tailgate permits the tailgate to fold into a transport position such that the trailer's deck and folded tailgate together provide a substantially planar surface; in addition, when in the loading-ramp position, the rubber bumpers are sufficiently low to provide the support mentioned above when loading heavy cargo such as a motorcycle. In the transport position, the tailgate of the present invention also lies flat against the bed of the trailer, thus providing little wind resistance. A latch pin secures the tailgate in the transport position.
  • Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawings.
    • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
  • FIG. 1 is a perspective view of a motorcycle transport trailer with a trailer tailgate in a transport position;
  • FIG. 2 is a perspective view of the trailer tailgate of the present invention in a transport position;
  • FIG. 3 is a perspective view of a latch-pin assembly for securing the trailer tailgate;
  • FIG. 4 is a perspective view of the trailer tailgate in its loading-ramp position;
  • FIG. 5 is a side elevation view of a rear portion of the trailer with the trailer tailgate in its transport position;
  • FIG. 6 is a side elevation view of a rear portion of the trailer with the trailer tailgate in its loading ramp position; and
  • FIG. 7 is a side elevation view of a rear portion of the trailer with the trailer tailgate in its loading ramp position, a motorcycle being loaded thereon.
    • DETAILED DESCRIPTION OF THE INVENTION
  • An example of a trailer 100 having a trailer tailgate 110 of the present invention is shown in FIG. 1. The trailer 100 is drawn by a tongue 120, the forward direction of the trailer being parallel to and toward the tongue 120. The front of the trailer is toward the tongue. Wheels 130 provide rolling support for the trailer 100, in general. The trailer 100 depicted in FIG. 1, has two wheels 130, only one visible. The trailer tailgate 110 of the present invention is not limited to use on a single axle trailer 100. In particular, the wheels 130 support a deck 140 on which cargo is supported for transport.
  • The trailer tailgate 110 in FIGS. 1 and 2 is shown in its transport position. In this position, the trailer tailgate 110 lies on the deck 140 of the trailer 100. When in the transport position, the combination of the tailgate 110 and the exposed deck 140 preferably make up a substantially planar top surface. The wedge shape of the tailgate 110 makes this possible. Recessed taillights 210 and reflectors 220 are disposed to the rear of the trailer 100.
  • An axis of rotation 230 is shown as a dot-dashed line in FIG. 2. The trailer tailgate 110 pivots on this axis of rotation 230 when converting between the transport position (FIGS. 1, 2, and 5) and the loading-ramp position (FIGS. 4, 6, and 7). Note that the axis of rotation 230 is below the trailer tailgate 110 when the trailer tailgate 110 is in its transport position.
  • A latch pin 240 is used to secure the trailer tailgate 110 in the transport position. A latch pin assembly of the preferred embodiment is detailed in FIG. 3. A spring 310 provides a force compelling the latch pin 240 toward the trailer 100. A nut 320 disallows the latch pin 240 from being pulled from a hole in which it is engaged on the trailer 100. An end 330 opposite that of the nut 320 in the roughly U-shaped latch pin 240 engages a hole in the trailer tailgate 110.
  • To convert the trailer tailgate 110 from its transport position (FIGS. 1, 2, and 5) to its loading-ramp position (FIGS. 4, 6, & 7), the latch pin 240 is pulled away from the trailer 100, compressing the spring 310 until the end 330 opposite the nut 320 disengages from the hole in the trailer tailgate 110. At this point, the trailer tailgate 110 may be lifted from the deck 140 and rotated about the axis of rotation 230 until it contacts the ground or pavement behind the trailer 100.
  • The trailer tailgate 110 is shown in its loading-ramp position in FIG. 4. The top surface of the trailer tailgate 110 (in this position) at the front edge is substantially even with the deck 140 of the trailer 100. The taillights 210 are protected in this position. The axis of rotation 230 is now above the trailer tailgate 110 in the loading-ramp position. The thin, rearmost edge 410 of the trailer tailgate 110 is typically supported by pavement or ground behind the trailer 100.
  • The trailer 100 is shown from the side in FIGS. 5-7. The trailer tailgate 110 is in the transport position in FIG. 5. A characteristic height 510 is shown for the trailer tailgate 110. After freeing the pin 240 and pivoting the trailer tailgate 110 on its axis of rotation 230, the trailer tailgate 110 is in its loading-ramp position as shown in FIGS. 6 and 7. Note that the end of the tailgate with the taillights 210 is noticeably lower in FIG. 6 than it was in FIG. 5 due to the location of the axis of rotation 230 relative to the trailer tailgate 110. Because of the lowering of the characteristic height, the approach angle is quite shallow, permitting items such as street bikes with a low ground clearance, to be loaded without bottoming out.
  • A plurality of bumpers 610, made of an elastic material such as rubber, are mounted on the surface of the trailer tailgate 110 closest to the ground when the trailer tailgate 110 is in its loading-ramp position. Because of the wedge-shape of the tailgate, the bumpers 610 are in a low position when in the loading-ramp position.
  • In FIG. 7, the trailer tailgate 110 is being used to load or unload a motorcycle 710. Note that, under the weight of the motorcycle and/or people, the bumpers 610 are lowered down to come into contact with the ground or pavement as shown by the arrow beneath the trailer deck 140.
  • The above embodiments are the preferred embodiments, but this invention is not limited thereto. It is, therefore, apparent that many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described.

Claims (7)

1. A wedge-shaped trailer tailgate comprising:
(a) a thick end, disposed to a front of a trailer when the wedge-shaped trailer tailgate is in a loading-ramp position; and
(b) a hinge, an axis of rotation of which is disposed above a top and toward the thick end of the wedge-shaped trailer tailgate when said tailgate is in the loading-ramp position, such that an angle of approach is shallow when the tailgate is in the loading-ramp position and a trailer deck and tailgate make up a substantially planar surface when the tailgate is in a transport position.
2. The wedge-shaped trailer tailgate of claim 1 additionally comprising at least one bumper operably attached to a bottom of the wedge-shaped trailer tailgate and near the thick end when the tailgate is in the loading-ramp position.
3. The wedge-shaped trailer tailgate of claim 2 wherein the bumper is made of an elastic material.
4. The wedge-shaped trailer tailgate of claim 1 additionally comprising taillights recessed into the thick end disposed to face back when the wedge-shaped tailgate is in the transport position.
5. The wedge-shaped trailer tailgate of claim 4 wherein the taillights are protected under the trailer deck when the wedge-shaped trailer tailgate is in the loading-ramp position, said taillights facing forward.
6. The wedge-shaped trailer tailgate of claim 1 additionally comprising a latch pin assembly comprising:
(a) a substantially U-shaped latch pin, a first end of the substantially U-shaped latch pin pivotally engaging a hole in the trailer and a second end of the substantially U-shaped latch pin made to optionally engage a hole in the wedge-shaped trailer tailgate such that, when the substantially U-shaped latch pin is engaged in the wedge-shaped trailer tailgate, the wedge-shaped trailer tailgate is secured to the trailer;
(b) a nut affixed to the first end of the substantially U-shaped latch pin; and
(c) a spring into which the first end of the substantially U-shaped latch pin engages, said spring bearing on a surface of the trailer and the nut such that the substantially U-shaped latch pin is forced toward the trailer by the spring.
7. A method of constructing a wedge-shaped trailer tailgate, said wedge-shaped trailer tailgate comprising an axis of rotation on which said wedge-shaped trailer tailgate pivots for converting between a transport position and a loading-ramp position, a thick end as seen in cross section of the trailer tailgate, and a first top surface when the trailer tailgate is in the loading ramp position, said method comprising the steps of:
(a) positioning the axis of rotation on the thick end of the wedge-shaped tailgate above the first top surface of the wedge-shaped trailer tailgate when the wedge-shaped trailer tailgate is in the loading-ramp position; and
(b) determining the location of the axis of rotation such that the first top surface of the wedge-shaped trailer tailgate, when in the loading-ramp position, is substantially even with a trailer deck and such that a second top surface of the wedge-shaped trailer tailgate when in the transport position, provides a substantially planar surface in combination with the trailer deck.
US10/869,265 2004-06-16 2004-06-16 Trailer tailgate Abandoned US20050280274A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/869,265 US20050280274A1 (en) 2004-06-16 2004-06-16 Trailer tailgate
US11/344,481 US7150487B2 (en) 2004-06-16 2006-01-31 Trailer tailgate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/869,265 US20050280274A1 (en) 2004-06-16 2004-06-16 Trailer tailgate

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/344,481 Division US7150487B2 (en) 2004-06-16 2006-01-31 Trailer tailgate

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US20050280274A1 true US20050280274A1 (en) 2005-12-22

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US10/869,265 Abandoned US20050280274A1 (en) 2004-06-16 2004-06-16 Trailer tailgate
US11/344,481 Expired - Fee Related US7150487B2 (en) 2004-06-16 2006-01-31 Trailer tailgate

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/344,481 Expired - Fee Related US7150487B2 (en) 2004-06-16 2006-01-31 Trailer tailgate

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080178400A1 (en) * 2007-01-25 2008-07-31 Bj Brown Method and apparatus for improving trailer ramps
GB2509342A (en) * 2013-04-08 2014-07-02 Sg Technical Systems Ltd Vehicle ramp assembly
US20150298629A1 (en) * 2012-11-27 2015-10-22 Gm Globaltechnology Operations Llc Induction powered panels
US20200189674A1 (en) * 2018-12-14 2020-06-18 Richard Dove Utility Trailer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9764673B2 (en) * 2010-10-20 2017-09-19 Anthony C. Bass Loading ramp and door for a storage vehicle
WO2016081268A1 (en) * 2014-11-20 2016-05-26 The Braun Corporation Retractable ramp system for motorized vehicle
JP6642492B2 (en) * 2017-03-09 2020-02-05 トヨタ自動車株式会社 Slope and slope device for vehicle
US11008202B2 (en) * 2019-04-30 2021-05-18 Target Brands, Inc. Cart transport vessel

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Publication number Priority date Publication date Assignee Title
US4020957A (en) * 1975-08-08 1977-05-03 Eugene Wilson Wren Detachable truck bed extension and loading ramp
US5678984A (en) * 1996-09-30 1997-10-21 Petersen; Larry M. Detachable folding trailer ramp
US6186734B1 (en) * 1999-03-23 2001-02-13 Lakes Enterprises, Inc. Detachable tail device with locking mechanism

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632067A1 (en) 1986-09-22 1988-05-11 Aluminium Walzwerke Singen Loading platform for motor vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020957A (en) * 1975-08-08 1977-05-03 Eugene Wilson Wren Detachable truck bed extension and loading ramp
US5678984A (en) * 1996-09-30 1997-10-21 Petersen; Larry M. Detachable folding trailer ramp
US6186734B1 (en) * 1999-03-23 2001-02-13 Lakes Enterprises, Inc. Detachable tail device with locking mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080178400A1 (en) * 2007-01-25 2008-07-31 Bj Brown Method and apparatus for improving trailer ramps
US20150298629A1 (en) * 2012-11-27 2015-10-22 Gm Globaltechnology Operations Llc Induction powered panels
US9452722B2 (en) * 2012-11-27 2016-09-27 GM Global Technology Operations LLC Induction powered panels
GB2509342A (en) * 2013-04-08 2014-07-02 Sg Technical Systems Ltd Vehicle ramp assembly
GB2509342B (en) * 2013-04-08 2014-11-19 Sg Technical Systems Ltd Ramp Assembly
GB2515157A (en) * 2013-04-08 2014-12-17 Sg Technical Systems Ltd Ramp assembly
GB2515157B (en) * 2013-04-08 2017-02-22 Sg Technical Systems Ltd Ramp assembly
US20200189674A1 (en) * 2018-12-14 2020-06-18 Richard Dove Utility Trailer

Also Published As

Publication number Publication date
US20060125271A1 (en) 2006-06-15
US7150487B2 (en) 2006-12-19

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Legal Events

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AS Assignment

Owner name: MIDWEST INDUSTRIES, INC., IOWA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DEVITT, JON W.;WIERTSEMA, GERALD;REEL/FRAME:016825/0175

Effective date: 20040611

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION